Any Twitter user knows that there are a lot of spam accounts. Some mainly post advertising Tweets; others are just accounts created to boost someone else's following. You can even buy Twitter followers. But now there's an app to find out how many of your followers are fake. PLUS you can find out how many of someone else's followers are fake. And that's just what Business Insider did -they analyzed the Twitter accounts of online celebrities who have record numbers of followers. They found huge numbers of those followers are fake accounts. Now, that doesn't mean the celebrity has been buying them; it could mean spam accounts tend to attach themselves to celebrities, or it could be a combination of both. I used my account as an example here, because I'm not a Twitter celebrity (and it shows). Link -via Metafilter